THE PLANETS
MERCURY
VENUS
EARTH
MARS
JUPITER
SATURN
URANUS
NEPTUNE
THE PLANETS
MERCURY
VENUS
EARTH
MARS
JUPITER
SATURN
URANUS
NEPTUNE
OVERVIEW
STRUCTURE
SURFACE
MERCURY
Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. Mercury is one of four terrestrial planets in the Solar System, and is a rocky body like Earth.
